Spring Boot GitHub Repositories (2026) · Open Source Tools

JoinFaces: JSF Spring Boot Starters - JSF inside Spring Boot Application

Example microservices showing how to use Kafka and Kafka Streams with Spring Boot on the example of distributed transactions implementations with the SAGA pattern

Examples of the Packt book "Mastering Software Testing with JUnit 5: Comprehensive guide to develop high quality Java applications"

Kotlin version of Spring Petclinic

Serendipity is an open source toolkit for building performant, high-quality applications.

Modern enterprise platform built with Spring Boot 4

Stove: The easiest way of writing e2e/component tests for your back-end app (jvm, go, rust, node, etc) with Kotlin

Open-source, self-hosted leave and absence management: vacation requests, sick notes, overtime. Urlaubsverwaltung für Teams.

Java ORM alternative to MyBatis & Hibernate: JPA-style CRUD + SQL-first queries. Dynamic conditions without <if> blocks; one SQL across 25 databases (auto dialect & function adaptation); self-optimizing pagination; cache translate (no dictionary JOINs); race-proof updateFetch ledgers; sharding, multi-tenancy, data masking. In production since 2008.

All you need to know to get your Spring Boot application into production with AWS 🍃

🤖 MateClaw — Your second brain with Multi-Agent Orchestration, MCP Protocol, Skills & Memory, Dream, and Multi-Channel Support. Built on Spring AI Alibaba.

A library for logging HTTP request/response for Spring Boot application and integration with Elastic Stack

Java web and command line applications demonstrating various security topics

Mediator implementation in Kotlin with native coroutine support

Spring Boot Starter for Logback-access.

FOSSLight Hub : Integrated management web-service for Open Source Compliance Process

Arconia is a framework that acts as an add-on for Spring Boot, designed to enhance modern enterprise applications built with Java. You can add Arconia to an existing Spring Boot application to boost developer experience, reduce boilerplate, and seamlessly adopt cloud native patterns.

Runs Camel on Spring Boot and provides starters for Camel components

A modular monolith application built with Spring Modulith

Improving Spring Boot test efficiency